Fuel System: 1920's or 1930's Fuel pump ID ? win a 1929 INDY 500 Picture

[(S)]

I'm looking at an NOS ? pump It is an AC pump, casting numbers are all I have. 855220 is cast onto the TOP of the sight bowl. 855223 is cast on the bottom of the pump cover. 1521977 is cast very small on the top. This is one old pump, I can tell by the staggered bolt patten.

I added pictures, the last picture is the 1929 Indy 500. The Studebaker pace car is to the far right. Person who can tell me what the pump is for will get a clear image emailed to them. Thanks



Thanks

[(S)]

Its been 2 weeks. Bump

[skyway]

Well I finally got around to looking in my oldest MOTORS manual. No luck, but a suggestion.

My book is from during or at the end of WWII, and in the fuel pump section it lists the fuel pump numbers for all/most US brands from early 30's thru the date the book was printed. My later 50's books do not list this info. So, maybe you can find your application in an even older MOTORS book?

Also, please note that your number beginning with "152" seems to be the standard beginning of an AC fuel pump part number. My book had many higher, and a few lower, than 1521977, but did not show that exact number.

[r1lark]

Mike,

According to a really old AC fuel pump catalog I have, the way to identify an AC pump is to find the 4-digit number stamped in the flange of the pump. There is then a formula to determine the full number, based on that number.

Is there any number stamped into the edge of the flange?

[r1lark]

So, Mike.......was there a 4-digit number stamped on the flange?

[(S)]

Yes, there is 1521780 stamped in the mounting flange. I notice near one of the sets of numbers above it says 'model B' Thanks so far!